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Automatic Darkness-Controlled Lighting System

Automatic Darkness-Controlled Lighting System

4372114230V AC50HZB160W230VBULBS1ON/OFFSWITCHM1M2GD11N4148N2N1LDR1GND+5VIC1 (N1, N2) = 7404LNAutomatic Darkness Controlled Lighting System
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publish time: 2020-10-26
Circuit Everyday

The operation of the circuit is simple.During the day, the low resistance of LDR1 causes gate N1 pin 1 to become low and its output pin 2 to become high.This high output is applied to the input pin 3 of gate N2.As a result, the output of gate N2 is lower.Therefore, no gate signal is applied to the three-terminal bidirectional SCR switch element BT136 (three-terminal bidirectional SCR switch element 1), and it ACTS as an open circuit and the bulb does not emit light.

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